Cord lock



FIG. 1 is a perspective view of a cord lock embodying my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a rear view thereof. 

The ornamental design for a cord lock, as shown and described. 